Regular Expressions

For precision of text manipulation and description, it's hard to beat the power of regexps.

Conclusion

Regular expressions are by far the most powerful tool for
text manipulation and description, and they are well supported
under Linux on many applications. Unfortunately, they are not
supported at all (to my knowledge) by the most popular search
engines because of their complexities. But, can you imagine how
precise your search would be if you had the ability to describe the
page you are looking for with a regular expression?

Giovanni
Organtini
(g.organtini@roma1.infn.it)
is a professor of Introduction to Computing and Programming for
Physicists at the University of Rome. He has used Linux for years,
both for fun and at work, where it is used for the simulation of
the CMS experiment
(cmsdoc.cern.ch) on
large farms and as part of a complex data-acquisition system and
machine control. Before the birth of his son, Lorenzo, he used to
travel, seeking good restaurants and attending concerts and
operas.